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import { createElement, startTransition } from 'react';
import { createRoot, hydrateRoot } from 'react-dom/client';
import StaticHtml from './static-html.js';
function isAlreadyHydrated(element) {
for (const key in element) {
if (key.startsWith('__reactContainer')) {
return key;
}
}
}
function createReactElementFromDOMElement(element) {
let attrs = {};
for(const attr of element.attributes) {
attrs[attr.name] = attr.value;
}
return createElement(element.localName, attrs,
Array.from(element.childNodes).map(c => {
if(c.nodeType === Node.TEXT_NODE) {
return c.data;
} else if(c.nodeType === Node.ELEMENT_NODE) {
return createReactElementFromDOMElement(c)
} else {
return undefined;
}
}).filter(a => !!a)
);
}
function getChildren(childString, experimentalReactChildren) {
if(experimentalReactChildren && childString) {
let children = [];
let template = document.createElement('template');
template.innerHTML = childString;
for(let child of template.content.children) {
children.push(createReactElementFromDOMElement(child))
}
return children;
} else if(childString) {
return createElement(StaticHtml, { value: childString });
} else {
return undefined;
}
}
export default (element) =>
(Component, props, { default: children, ...slotted }, { client }) => {
if (!element.hasAttribute('ssr')) return;
const renderOptions = {
identifierPrefix: element.getAttribute('prefix'),
};
for (const [key, value] of Object.entries(slotted)) {
props[key] = createElement(StaticHtml, { value, name: key });
}
const componentEl = createElement(
Component,
props,
getChildren(children, element.hasAttribute('data-react-children'))
);
const rootKey = isAlreadyHydrated(element);
// HACK: delete internal react marker for nested components to suppress aggressive warnings
if (rootKey) {
delete element[rootKey];
}
if (client === 'only') {
return startTransition(() => {
const root = createRoot(element);
root.render(componentEl);
element.addEventListener('astro:unmount', () => root.unmount(), { once: true });
});
}
startTransition(() => {
const root = hydrateRoot(element, componentEl, renderOptions);
root.render(componentEl);
element.addEventListener('astro:unmount', () => root.unmount(), { once: true });
});
};
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